SCHNEIDER, Harald, et al. (The Pteridophyte Phylogeny Group). A community-derived classification for extant lycophytes and ferns. S. 563–603. Journal of Systematics and Evolution [online]. Institute of Botany, Chinese Academy of Sciences & John Wiley & Sons, Inc., 7. listopad 2016 [cit. 2020-10-20]. Svazek 54, čís. 6, s. 563–603. Dostupné online. Dostupné také na: [1]. ISSN1759-6831. DOI10.1111/jse.12229. (anglicky)
MAARTEN J. M. CHRISTENHUSZ; MARK W. CHASE. Trends and concepts in fern classification. S. 571–594. Annals of Botany [online]. 13. únor 2014. Svazek 113, čís. 4, s. 571–594. Dostupné online. ISSN1095-8290. DOI10.1093/aob/mct299. (anglicky)
CHRISTENHUSZ, Maarten J.M.; CHASE, Mark W. PPG recognises too many fern genera. S. 481–487. Taxon [online]. John Wiley & Sons, Inc., 6. červen 2018 [cit. 2020-10-21]. Svazek 67, čís. 3, s. 481–487. Dostupné online. Dostupné také na: [3]. ISSN1996-8175. DOI10.12705/673.2. (anglicky)
Liang Zhang, et al. Evolutionary relationships of the ancient fern lineage the adder's tongues (Ophioglossaceae) with description of Sahashia gen. nov. S. 380–393. Cladistics [online]. John Wiley & Sons, Inc., 17. leden 2020 [cit. 2020-10-20]. Svazek 36, čís. 4, s. 380–393. Dostupné online. ISSN1096-0031. DOI10.1111/cla.12408. (anglicky)
MAARTEN J. M. CHRISTENHUSZ; MARK W. CHASE. Trends and concepts in fern classification. S. 571–594. Annals of Botany [online]. 13. únor 2014. Svazek 113, čís. 4, s. 571–594. Dostupné online. ISSN1095-8290. DOI10.1093/aob/mct299. (anglicky)
researchgate.net
SCHNEIDER, Harald, et al. (The Pteridophyte Phylogeny Group). A community-derived classification for extant lycophytes and ferns. S. 563–603. Journal of Systematics and Evolution [online]. Institute of Botany, Chinese Academy of Sciences & John Wiley & Sons, Inc., 7. listopad 2016 [cit. 2020-10-20]. Svazek 54, čís. 6, s. 563–603. Dostupné online. Dostupné také na: [1]. ISSN1759-6831. DOI10.1111/jse.12229. (anglicky)
CHRISTENHUSZ, Maarten J.M.; CHASE, Mark W. PPG recognises too many fern genera. S. 481–487. Taxon [online]. John Wiley & Sons, Inc., 6. červen 2018 [cit. 2020-10-21]. Svazek 67, čís. 3, s. 481–487. Dostupné online. Dostupné také na: [3]. ISSN1996-8175. DOI10.12705/673.2. (anglicky)
wiley.com
onlinelibrary.wiley.com
SCHNEIDER, Harald, et al. (The Pteridophyte Phylogeny Group). A community-derived classification for extant lycophytes and ferns. S. 563–603. Journal of Systematics and Evolution [online]. Institute of Botany, Chinese Academy of Sciences & John Wiley & Sons, Inc., 7. listopad 2016 [cit. 2020-10-20]. Svazek 54, čís. 6, s. 563–603. Dostupné online. Dostupné také na: [1]. ISSN1759-6831. DOI10.1111/jse.12229. (anglicky)
CHRISTENHUSZ, Maarten J.M.; CHASE, Mark W. PPG recognises too many fern genera. S. 481–487. Taxon [online]. John Wiley & Sons, Inc., 6. červen 2018 [cit. 2020-10-21]. Svazek 67, čís. 3, s. 481–487. Dostupné online. Dostupné také na: [3]. ISSN1996-8175. DOI10.12705/673.2. (anglicky)
Liang Zhang, et al. Evolutionary relationships of the ancient fern lineage the adder's tongues (Ophioglossaceae) with description of Sahashia gen. nov. S. 380–393. Cladistics [online]. John Wiley & Sons, Inc., 17. leden 2020 [cit. 2020-10-20]. Svazek 36, čís. 4, s. 380–393. Dostupné online. ISSN1096-0031. DOI10.1111/cla.12408. (anglicky)
worldcat.org
SCHNEIDER, Harald, et al. (The Pteridophyte Phylogeny Group). A community-derived classification for extant lycophytes and ferns. S. 563–603. Journal of Systematics and Evolution [online]. Institute of Botany, Chinese Academy of Sciences & John Wiley & Sons, Inc., 7. listopad 2016 [cit. 2020-10-20]. Svazek 54, čís. 6, s. 563–603. Dostupné online. Dostupné také na: [1]. ISSN1759-6831. DOI10.1111/jse.12229. (anglicky)
MAARTEN J. M. CHRISTENHUSZ; MARK W. CHASE. Trends and concepts in fern classification. S. 571–594. Annals of Botany [online]. 13. únor 2014. Svazek 113, čís. 4, s. 571–594. Dostupné online. ISSN1095-8290. DOI10.1093/aob/mct299. (anglicky)
CHRISTENHUSZ, Maarten J.M.; CHASE, Mark W. PPG recognises too many fern genera. S. 481–487. Taxon [online]. John Wiley & Sons, Inc., 6. červen 2018 [cit. 2020-10-21]. Svazek 67, čís. 3, s. 481–487. Dostupné online. Dostupné také na: [3]. ISSN1996-8175. DOI10.12705/673.2. (anglicky)
Liang Zhang, et al. Evolutionary relationships of the ancient fern lineage the adder's tongues (Ophioglossaceae) with description of Sahashia gen. nov. S. 380–393. Cladistics [online]. John Wiley & Sons, Inc., 17. leden 2020 [cit. 2020-10-20]. Svazek 36, čís. 4, s. 380–393. Dostupné online. ISSN1096-0031. DOI10.1111/cla.12408. (anglicky)